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12-08-2016
06:50 PM
The documents at the link above are for Apache NiFi 1.1.0, but HDF 2.0.0 was built with NiFi 1.0.0. The ability to append was added to NiFi 1.1.0 under NIFI-1322, so will likely be available in an upcoming version of HDF. The docs at that site are always for the latest version of Apache NiFi, it is recommended that you use the docs that come with your version of HDF/NiFi, using the Help option from the top-right hamburger menu in your running instance of HDF/NiFi.
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06-08-2018
07:50 AM
Hey @Arsalan Siddiqi, I'm having the same problem as you but I don't have any space in the beginning or ending. I'm still getting the same error. Can you please specify if you made any other changes?
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12-09-2016
02:25 PM
For those who may be at a back level HDF version as we are a good workaround is to use the SplitContent instead as it utilizes many of the attributes Matt has documented above for the SplitJson processor.
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12-05-2016
03:20 PM
thankyou @Matt Burgess I will use the Http processors in the meantime then!
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12-01-2016
04:27 AM
Thank You @Matt Burgess and @greyKeys . Previously I used timestamp which results in error, then I changed it to ${uuid} its working fine.
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11-18-2016
01:19 PM
Thanks @Matt Burgess. Currently I am handling this using a Javascript, similar approach to what you described. I wanted to confirm there is no other way. For simpler structures, I managed to extract the key values using Regex, but for deep nested keys, I was forced to use ExecuteScript.
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11-17-2016
04:40 AM
@Matt Burgess @Arsalan Siddiqi
Now Logs are changed 2016-11-17 10:01:04,640 ERROR [StandardProcessScheduler Thread-3] o.a.n.controller.StandardProcessorNode Failed to invoke @OnScheduled method due to java.lang.RuntimeException: Failed while executing one of processor's OnScheduled task.
java.lang.RuntimeException: Failed while executing one of processor's OnScheduled task.
at org.apache.nifi.controller.StandardProcessorNode.invokeTaskAsCancelableFuture(StandardProcessorNode.java:1392) ~[na:na]
at org.apache.nifi.controller.StandardProcessorNode.access$100(StandardProcessorNode.java:90) ~[na:na]
at org.apache.nifi.controller.StandardProcessorNode$1.run(StandardProcessorNode.java:1230) ~[na:na]
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) [na:1.8.0_91]
at java.util.concurrent.FutureTask.run(FutureTask.java:266) [na:1.8.0_91]
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180) [na:1.8.0_91]
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293) [na:1.8.0_91]
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) [na:1.8.0_91]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) [na:1.8.0_91]
at java.lang.Thread.run(Thread.java:745) [na:1.8.0_91]
Caused by: java.util.concurrent.ExecutionException: java.lang.reflect.InvocationTargetException
at java.util.concurrent.FutureTask.report(FutureTask.java:122) [na:1.8.0_91]
at java.util.concurrent.FutureTask.get(FutureTask.java:206) [na:1.8.0_91]
at org.apache.nifi.controller.StandardProcessorNode.invokeTaskAsCancelableFuture(StandardProcessorNode.java:1375) ~[na:na]
... 9 common frames omitted
Caused by: java.lang.reflect.InvocationTargetException: null
at sun.reflect.GeneratedMethodAccessor301.invoke(Unknown Source) ~[na:na]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_91]
at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_91]
at org.apache.nifi.util.ReflectionUtils.invokeMethodsWithAnnotations(ReflectionUtils.java:137) ~[na:na]
at org.apache.nifi.util.ReflectionUtils.invokeMethodsWithAnnotations(ReflectionUtils.java:125) ~[na:na]
at org.apache.nifi.util.ReflectionUtils.invokeMethodsWithAnnotations(ReflectionUtils.java:70) ~[na:na]
at org.apache.nifi.controller.StandardProcessorNode$1$1.call(StandardProcessorNode.java:1234) ~[na:na]
at org.apache.nifi.controller.StandardProcessorNode$1$1.call(StandardProcessorNode.java:1230) ~[na:na]
... 6 common frames omitted
Caused by: java.lang.IllegalStateException: Cannot invoke method public abstract java.sql.Connection org.apache.nifi.dbcp.DBCPService.getConnection() throws org.apache.nifi.processor.exception.ProcessException on Controller Service with identifier 47e0b89a-2e72-46d5-956e-f3b2f2b32a3f because the Controller Service is disabled
at org.apache.nifi.controller.service.StandardControllerServiceProvider$1.invoke(StandardControllerServiceProvider.java:161) ~[na:na]
at com.sun.proxy.$Proxy91.getConnection(Unknown Source) ~[na:na]
at org.apache.nifi.processors.standard.QueryDatabaseTable.setup(QueryDatabaseTable.java:225) ~[na:na]
... 14 common frames omitted
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11-09-2016
02:12 PM
Thanks @Andrew Grande! That worked! I feel like a noob 🙂 but appreciate all the help!
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11-08-2016
08:11 PM
1 Kudo
Avro doesn't like the dots in the attribute names (which become field names), perhaps you could rename them (with UpdateAttribute or at the source processor(s)) using underscores (or other valid characters like alphanumeric characters, see the link for the rules).
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